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- Title
Association between non‐alcoholic fatty liver disease and risk of new‐onset atrial fibrillation in healthy adults.
- Authors
Roh, Jae‐Hyung; Lee, Jae‐Hwan; Lee, Hanbyul; Yoon, Yong‐Hoon; Kim, Minsu; Kim, Yong‐Giun; Park, Gyung‐Min; Park, Jae‐Hyeong; Seong, In‐Whan
- Abstract
Background & Aims: Previous studies demonstrated conflicting results regarding the association between non‐alcoholic fatty liver disease (NAFLD) and atrial fibrillation (AF). The statistical power was not sufficient because of modest sample sizes of these studies. We analysed a large population‐based cohort to evaluate the association between NAFLD and AF. Methods: We evaluated 334 280 healthy individuals without comorbidities who underwent National Health check‐ups in South Korea from 2009 to 2014. NAFLD was defined by a surrogate marker, the fatty liver index (FLI). The association between FLI and AF incidence was analysed using multivariate Cox proportional hazards regression models. Results: During a median follow‐up of 5.3 years, 1415 subjects (0.4%) were newly diagnosed with AF. Subjects were categorized into quartile groups according to FLI (range: Q1, 0‐4.9; Q2, 5.0‐12.5; Q3, 12.6‐31.0; Q4, >31.0). The cumulative incidence of AF was significantly higher in subjects with higher FLIs than in those with lower FLIs (Q1, 167 [0.2%]; Q2, 281 [0.3%]; Q3, 470 [0.6%]; Q4, 497 [0.6%]; P <.001). Adjusted hazard ratios (HRs) indicated that a higher FLI was independently associated with an increased risk for AF (HR between Q4 and Q1, 1.35; 95% confidence interval [CI], 1.11‐1.63; P =.002). After further adjustment for the interim events (diabetes, hypertension, heart failure and myocardial infarction), this association remained statistically significant (HR between Q4 and Q1, 1.55; 95% CI, 1.19‐2.03; P =.001). Conclusions: NAFLD, assessed by FLI, was independently associated with increased risk for AF in healthy Korean population. Moreover, NAFLD itself predisposes to AF independently of the interim events.
- Subjects
SOUTH Korea; ATRIAL fibrillation; FATTY liver; PROPORTIONAL hazards models
- Publication
Liver International, 2020, Vol 40, Issue 2, p338
- ISSN
1478-3223
- Publication type
Article
- DOI
10.1111/liv.14236